The enzyme that activates fibrinogens in the blood is:

1.	Thromboplastin	2.	Thrombokinase
3.	Thrombin	4.	Plasmin

Blood enters the heart because muscles of the:

The portal systems seen in humans include:
I: Hepatic portal system
II: Renal portal system
III: Hypothalamic Hypophyseal portal system

Passive filling accounts for about what percent of ventricular filling?

Which of the following recordings of blood pressure in a healthy person will be considered as normal?

The period of systole is represented on surface ECG as between:
1. Beginning of P wave and beginning of Q wave
2. End of S wave and beginning of T wave
3. Shortly after Q wave and end of the T wave
4. Two successive R waves

Which of the following can be called as a ‘cascade’ process?

The deoxygenated blood from the cardiac muscles is returned to the right atrium by:

Identify the incorrectly matched pair:
1. Average duration of a cardiac cycle: 0.8 sec
2. Stroke volume of each ventricle: 120 ml
3. Highest normal systolic blood pressure: 140 mm Hg
4. Highest normal diastolic blood pressure: 90 mm Hg

To begin the blood clot formation cascade, the enzyme complex required is: